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CHEMGRID MOLECULE CARD

Phenazopyridine hydrochloride

Phenazopyridine hydrochloride in ChemGrid: 3 screened assays, 3 with significant responses. Explore chemical identifiers, strain activity and target evidence.

Prest158

Explore activity & SONAR
Chemical structure of Phenazopyridine hydrochloride
Stored molecular structure
3Screened assays
3Significant assay responses
9Source-labelled target records

Identity and chemistry

ChemGrid identifier
Prest158
Molecular formula
C11ClH12N5
CAS registry number
136-40-3
InChIKey
QQBPIHBUCMDKFG-UHFFFAOYSA-N
Libraries
Prestwick
Stored SMILESCl.Nc1ccc(N=Nc2ccccc2)c(N)n1

Matched external records: PubChem 8691

Chemical identifiers and library names are reproduced from ChemGrid records. Missing values are omitted.

Measured chemical–genetic activity

3 measurements across 3 distinct library–species–strain assays; 3 assays have at least one significant response (|Z| ≥ 4, p ≤ 0.001, excluding flagged outliers).

Responses are indirect screening phenotypes. They do not establish that a strain gene is a direct molecular target. Strains and timepoints are retained as recorded; these counts are not counts of unique ORFs.

Up to 12 strongest recorded single-strain responses by absolute Z-score
StrainLibrarySpecies identifierZ-score
TMPPre003Prestwick9606-20.92
TMPPre001Prestwick9606-7.16
TMPPre002Prestwick9606-7.16

Spectrum compound-combination identifiers are excluded from this short table. The interactive profile retains the full measurements.

Recorded target evidence and yeast matches

Source annotations are shown separately from SONAR hypotheses. Evidence type and identity matching can vary; consult the linked source and interactive evidence panel.

TargetSourceYeast ORF / orthologue
Luciferin 4-monooxygenaseChEMBLNo stored yeast mapping
ampC · Beta-lactamaseChEMBLNo stored yeast mapping
GMNN · GemininChEMBLNo stored yeast mapping
KDM4E · Lysine-specific demethylase 4EChEMBLYJR119C (ortholog_one2many)
MAPT · Microtubule-associated protein tauChEMBLNo stored yeast mapping
NFE2L2 · Nuclear factor erythroid 2-related factor 2ChEMBLNo stored yeast mapping
Rorc · Nuclear receptor ROR-gammaChEMBLNo stored yeast mapping
SMAD3 · Mothers against decapentaplegic homolog 3ChEMBLNo stored yeast mapping
TDP1 · Tyrosyl-DNA phosphodiesterase 1ChEMBLTDP1 YBR223C (ortholog_one2one)

Structural activity predictions and SONAR

Stored structural activity predictions are available in the interactive profile, with assay-specific cutoffs and applicability-domain assessments.

SONAR ranks candidate targets through genetic and physical interaction evidence. Structural SONAR uses predicted strain responses; measured SONAR uses experimental responses. These are experimental hypotheses, not confirmed binding targets. Outside-domain predictions are treated as unknown.

Open the complete Phenazopyridine hydrochloride research profile →

Sources and provenance

Screening measurements: ChemGrid chemical-genetic datasets. Wildenhain et al., Cell Systems (2015). Target annotations: sources named in the evidence table. Structure and library metadata: stored ChemGrid catalogue records.

Card snapshot: 2026-11-02. Linked interactive views may contain newer data.